AGILIS: Restoring functional grasping in individuals with tetraplegy using epineural electrodes

Christine Azevedo Coste (1) , Charles Fattal (2, 1) , Lucie William (1) , Lucas Fonseca (1) , Arthur Hiairrassary (3) , David Andreu (3) , Antoine Geffrier (4, 5) , Jacques Teissier (6) , David Guiraud (1, 3)

1 CAMIN - Contrôle Artificiel de Mouvements et de Neuroprothèses Intuitives
2 USSAP Perpignan
3 NEURINNOV
4 Centre Hospitalier Universitaire de Rennes [CHU Rennes] = Rennes University Hospital [Ponchaillou]
5 AP-HP - Assistance publique - Hôpitaux de Paris (AP-HP)
6 Clinique Saint-Jean - Sud de France [Montpellier]

We propose a novel approach to restore grasping in individuals with complete tetraplegia using epineural stimulation. Two multi-contact cuff electrodes were positioned around radial and median nerves in 2 volunteers during a surgery. The electrodes were maintained for 28 days. A user interface allowed the triggering of pre-programmed stimulation sequences on demand by executing stereotyped movements or by contracting voluntarily muscle on the contralateral shoulder. The stimulation selectivity obtained with the epineural electrodes was sufficient to obtain functional palmar and key pinch grip.

Domaines: Automatique / Robotique; Sciences du Vivant [q-bio]

Christine Azevedo Coste, Charles Fattal, Lucie William, Lucas Fonseca, Arthur Hiairrassary, et al.. AGILIS: Restoring functional grasping in individuals with tetraplegy using epineural electrodes. ICETRAN 2022 - 9th international conference on electrical, electronic and computing engineering, Jun 2022, Novi Pazar, Serbia. ⟨hal-03681557⟩